Plowshare



(No Model.)

H. OHESHER 8v H. RANDOLPH. PLOWSHARE.

Patented June 15,1897.

Flgi 5. f7

llnirn TATES PATENT HARRY CHESHER AND HARVEY RANDOLPH, OF RICHMOND,PENNSYLVANIA;

P L 0 WS H A R E.

SPECIFICATION forming part of Letters Patent No. 584,493, dated June 15,1897.

Application filed February 5, 1896. Serial No. 578,088, (No model.)

To (l/ZZ whom it 77mg concern:

Be it known that we, HARRY CHESHER and HARVEY RANDOLPH, citizens of theUnited States, and residents of Richmond, in the county of Northamptonand State of Pennsylvania, have invented certain new and usefulImprovements in Plowshares, of which the following is a specification,reference being had to the accompanying drawings, forming a partthereof, in which similar letters of reference indicate correspondingparts.

This invention relates to plowshares, and particularly to the moldboardthereof; and the object of the invention is to provide a moldboard witha plurality of ribs which extend from the point of the share backwardlyand upwardly and which are formed in a correspondingly-formed centralraised portion of the moldboard, which extends from the point of theshare backwardly to near the rear end of the inoldboard, and the objectof which is to break up and divide the earth to throw it off of themoldboard, so as to form a level surface, and to decrease the frictionin deep plowing.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which-- Figure 1 is aside view of a plow, showing also our improved moldboard and share; Fig.2, a transverse section of the moldboard on the line 2 2; Fig. 3, a planview of the forward end of the moldboard and share; Fig. 4, a side Viewof a modified form of moldboard which is intended for deep plowing; Fig.5, a plan view thereof, and Fig. 6 a view similar to Fig. 4 of anotherform of construction.

In the practice of our invention we provide a moldboard A, which may becomposed of any desired material, and the surface thereof is providedwith a plurality of ribs B, which extend from the share 0 backwardly andupwardly along the surface of the moldboard, as shown in Figs. 1 and 2,and the rear ends of which are also slightly curved upwardly, as shownin Fig. 1, and the rear end of the moldboard is provided with anoutwardly-directed curved flange or rim D, extending from the base Cupwardly to the portion A, as is shown in Figs. 1 and 2.

The ribs B are of the form in cross-section shown in Fig. 2, the uppersides of all except the upper rib being substantially horizontal incross-section and the outer side thereof being vertical except at theextreme point Where the upper sides of the ribs are formed into grooves,as shown at h in Fig. 3, and the upper side of the upper rib is inclinedor curved upwardly, as shown at Z2 and the outer side of the lower ribis inclined outwardly and downwardly near the rear portion thereof, asshown at 6 The object of this formation of the moldboard is to break upand finely divide the earth and also to throw the same olf of themoldboard in such manner as to produce a level surface, and the bottomof our improved moldboard and the landside thereof may be straight, asshown at E and F, respectively, or of any desired form. We may alsoprovide a pilot G, which is connected with the beam 11 of the plow inthe usual manner, but this feature is immaterial and forms no part ofour invention.

The object of the modification shown in Fig. 4 is to provide means tobreak up the earth or sod and at the same time decrease the friction onthe moldboard by distributing the power that is employed to pull thesame through the ground in the manner heretofore described, and thisobject is accomplished by a series of ribs B, somewhat similar to thoseof Fig. 1, which are provided with points I), which are arranged in suchmanner that they relieve each other by reason ofthe fact that the earth.is first broken by the upper point or projection and removed by thecorresponding rib or flange.

The successive points or projections and corresponding ribs or flangesare also so arranged that each successive point or projection enters theground lower than the one above it, and the soil is thus out and raisedor thrown over in layers or sections, and in this manner the ground maybe plowed to any desired depth.

It will be understood that the principle of construction is the same inthis case as in the construction shown in Fig. 1, but the constructionshown in Fig. 4 possesses many advantages over that shown in Fig. 1, andthis is especially true in breaking up sod and other stiff and compactsoils, and by means of this construction the usual pilot may bedispensed with, the upper point, projection, or cutter, whichever it maybe termed, taking the place thereof and being so arranged that it cutsonly where required.

In the construction of this plowshare we prefer to have the projectingpoints or rib ends about three inches apart, so that each one may haveabout three inches of soil to break and turn over, and to make eachsuccessive point from the bottom up project a predetermined distanceforward of the one below it, as indicated in Fig. 4. By thisconstruction we not only break up sod, but we reduce the friction to aminimum and are enabled to plow much deeper than with plows of ordinaryconstruction.

Our improved moldboard is well adapted to accomplish the result forwhich it is intended, and the utility thereof will be understood by allthose familiar with this class of devices, and it is evident that otherchanges in and modifications of the form thereof as herein shown anddescribed may be made without departing from the spirit of our inventionr sacrificing its advantages, and we reserve the right to make all suchchanges therein and modifications thereof as fairly come within thescope of the invention.

Having fully described our invention, we

claim as new and desire to secure by Letters Patent 1. As a new articleof manufacture a plowshare having a moldboard provided with a pluralityof upwardly and backwardly extending ribs, said ribs having their rearends curved upwardly and an outwardly-directed curved flange secured toand integral with said inoldboard at the rear thereof; all of the saidparts being combined substantially as described.

2. A plowshare having formed integrally therewith a plurality of ribswhich extend from the points of the share backwardly and upwardly to therear end of the share, said ribsibeing extended to form separate points,one above the other on front of said share, substantially as hereinshown and described.

In testimony that we claim the foregoing as our invention we have signedour names, in presence of the subscribing witnesses, this 1st day ofFebruary, 1896.

HARRY CHESHER. HARVEY RANDOLPH. WVitnesses:

H. B. LUFFBERRY, ROBERT A. TAYLOR.

